Transmission gearing



A. E. OSBORN TRANSMISSION BEARING. 1

APPLICATION FILED APR.24, 1919.

1,41 2,2 14-. Patent d Apr. 11, 1922 3 SHEETS-SHEET I. Fiyri, 7

A. E. OSBORN.

TRANSMISSION G EAR|NG. APPLICATION FILED APR.24. 1919.

1,412,214. Pa te Apn111922.

3 SHEETS-SHEET 2.

INVENTOR I 2 I m v A. E. OSBORN. TRANSMISSION GEARING.

v APPLICATION FILED APR.24. 1919. 1 ,412,214, Patented Apr. 11, 1922.

s SHEETS-SHEET a.

INVENTO v To all whom it may concern:

nuns;

, ALDEN n. .osnonn, orl vnw YORK, N. Y.

TRANSMISSION GEARING.

' Application filed April 24,

illustrated in my Patents No. 995,552 dated June 20, 1911 and'No} 1,213,531 dated Jan. 23,1917 whereby suchgearingis not only considerably simplified but is, moreover, so

arranged that-its action can be entirely regulated by control connections glvmg the required movements to two of its members only thus also simplifying the operating mechanism. I

Iii-the accompanying drawings Figure 1 represents a longitudinalpartial sectional view of a simple form of my invention F gure 2 represents a vertical sectional View of the mechanism shownin Figure 1; Figure 3 representsa longitudinal sectional view of a modification of Figures 1'and2 and Figure 1 represents a longitudinalpartial sectional View of a still further modification.

In Figure 1, 10 indicates the driving element in this figure shown as the main supporting shaft, and 20 indicates the driven element which is in the form of a sleeve r0- t-ata-ble' upon said driving element The drivingelement 10 carries one of the gears 11 of the planetarygear system whilethe driven element 20 carries the pinion gear 21 of said gear system fthe third gear 31 of which is, carried by the mount 17 which part forms, with the cover 18, an enclosing case for the gearing. The driving element 10 is arranged to carry the wheel 16 which,;w hile not necessarily forming. the flywheel of the motor or prime mover 15', is shown.as l1a.ving that function as well as having a part this transmission mechanism by being provided with a cone-"surface for the clutch 38 and with a frictional driving surface 56 designedto co-operate with the. intermediategears or friction disks 44, that v are rotatably carried by levers 45 'pivotally mounted on the framing 40. These levers 45"also carry the brake'shoes 42 which pass across the face of the disks 4% near their centers and are raised slightly above, for reasons obvious later, the level of the face of the discs. The

the. gearyll, within said gear 31 the driven element 20 with it but Specification of Iietters Patent. Patented 11,

levers 45 are connected by therofd 63 and levers'66 ,to the rod 67 in such a way that by moving the rod 67 these levers 45 may be moved nearer together or further apart as desired by the operator. The mount 17 is arranged to carry a drum or wheel 48 which drum is provided with a'frictional driving 7 or working surface 46 having the same diameter as the frictional surface 56 on the wheel 16 and is arranged so thatit can be.

slid along the mount 17 in order that this frictional driving surface 46 can be brought either between the surfaces on the discs i or between the brake shoes t2-this sliding movement of the drum 48being controlled through the collar 23, lever 24 and rod27. another friction I The'drum 48 also carries surface 38 which surface can co-operate'with the cone surface; 58; on the parts forming a cone clutch which locks the gear system together so thatit will rotate as aunit when the surfaces forcibly brought into Contact;

- The operation of this form of my iiiven- 0 I 8 l v 10 is rotating'wi'th the driven element2O i tion is as follows: When the driving element wheel '16 these 38 and 1 58 are standing the gearvll turns the intermediate pinion 21 and causes the gear 31 and parts connected thereto to revolve backward idly without transmitting any motion through to the driven element. 1 To rotate the drivenelement 20 at low speedthe-restrainable member drum 18 is placed such a-pofsition that the surface 46 would comewithin the brake shoes42 so'thatwhen the shoes are brought 'together by pulling, through a convenient means, the controllineirod 67, the drum {16, restrainable mount '17 and'gear' 31 would be held from rotation and the pinion 2lvcaused. to rollaround, by the motion of speed than that at whichthe gear 111 and clutch-surfaces 38;and'.58 into contact which: i i

by; preventing the gears 11, 21 and 31" from I revolving causes thewhole' gear to turn a i unit and] with thedriving and driven ele: ments locked from relative motion. To obtain the reversethe mount drum 18' is moved awayfromthe flywheel 16 sothat the surface 46 comes'on the opposite side of the brake, shoes 42 from the wheel surface '56 95 and carry ata lower 1 and the shoes are again brought toward each other when (as the shoes 42 do not now come into contact with the drum surface 46) the working or driving surface of the intermediate wheels or discs 44 are engaged with the flywheel surface 56 and the drum surface 46 causing the restrainable mount 17 to be 'driven backward at a higher speed in relation to the driving element parts than it normally revolves and thus, through the act-ion of the gears 11, 21 and 31, carry the driven element backward with it. It will be noticed that, provided the driving surfaces on the discs 44 are wide enough, if a very slow re verse or a low forward speed or even if restraint of all motion of the driven element is desired it is possible to obtain these results by placing the restrainable mount drum 48 between the position where the surface 46 is within the brake shoes 42 and its extreme reverse position as just described and engaging the working surfaces on the intermediate disc .44 with the drum surface 46 and wheel surface 56 so as to give the desired speed to the restrainable mountl? and retard its motion or drive it backward faster than the gears according to the distance of the point of driving contact of the surface 46 from the axis of rotation of the discs.

In Figure 3 is shown a slight modification of Figures 1 and 2 in that bevel gearing is used in place of the spur and internal gears and the intermediate disc and brake mounting and operating arrangements have been changed. The driving element wheel 16 carries the gear or frictional driving surface 56 and the clutch surface 58 and is connected to the driving bevel gear 11 of the gear system which gear meshes with the intermediate bevel pinion. 21 which. pinion is rotatably mounted 011 the driven element 20 and in turn meshes with the bevel gear 31 on the restrainable mount 1? which mount carries slidably the drum or wheel 48 having the gear or frictional driving surface 46. The pinion 21 is shown as arrange l, in order to give it a relatively long supporting bearing, with its shaft, which is illustrated as being integral with it, passing right through the driven element 20 with a ball thrust bearing 19 on the opposite side of the axis of said member from said pinion. The levers 45 carrying the intermediate gear or discs 44- and the restraining brake shoes 42 (which are shown as slightly raised spherically faced hub ends of the intermediate. discs) are arranged to operatehorizontally, through actuating the rod 63 and lever 66, instead of vertically as in Figures 1 V and 2 and also as in Figure 4 hereinafter described. This difference in mounting is immateiral so far as 1ts effect on the operation of my invention is concerned and may be used with Figures 1, 2 and 4 or the arrangement shown in those Figures can be used to equal advantage with the form of my invention now being described.

The operation of this form of my invention is practically the same as the operation of the form shown in Figures 1 and 2 and similar parts, as indicated by similar ref-erence figures, come into action except for the difference in speed ratios given by the use of the bevel gears 11, 21 and 31 causing the driven element 20 to rotate much faster in relation to the driving element 10 when the restrainable mount 17 is held stationary by bringing the brake shoes or disc centers 42 forcibly against the driving surface 46. Giving to this change in gear ratio it is obvious that if the intermediate discs 44 are engaged when the wheel or drum surface 46 is at an equal distance from their axis of rotation as is the surface 56 no mo-' tion would be transmitted to the driven element 20, since-the gears 11 and 31 are of the same size, while if the drum 48 is shifted so that its surface 46 is nearer to the axes of the discs 44, thus retarding the speed of the mount 17 and gear 31 in relation to the gear 11, the driven element 20 would be car ried slowly ahead in the same direction as the driving element 10 and gear 11 rotate while if the drum 48 is shifted in the op posite direction away from the discs centers, it and the gear 31 would, when the discs are engaged, be given a higher speed than the driving element 10 and gear 11 and carry the driven element 20 backward with it.

In Figure 4 is shown a more elaborate form of my invention thanthose forms previously illustrated and one in which a still higher speed is given to the driven element 20 in relation to the driving element 10, when the restrainable mount 17 is kept from revolving, than is the case with Figure 3. In this form the driving element 10 car- 1 ries the clutch surface 58 and driving or gear surface 56 and the gear 11 of the gear system which is the internal gear member of that system. This gear 11 i11Sl1SWltl1 the pinion 21 rotatably mounted on the driven element 20 which meshes in turn with the gear 31 carried by the mount 17 which also carries the sliding drum or wheel 48.

iVhile thus drum mayslike Figures 1, 2 and f 3, carry the member 38 of the clutch for locking the parts for the direct drive I have, in this figure, shown a modified arrangement wherein, while the sliding of the drum 48 brings the. clutch surfaces 38 and 58 into engz-tgement, it does so through the medium of the tapered collar or spool 4, the pivoted levers 5 and adjusting collar 16. It will be noticed that the clutch surface 38 is mounted on the member 7 which is slidably keyed to an extension of the driven element 20 so that when the clutch surfaces 38 and 58 are and the levers 45' me pivoted on the fram-' ing40 at an ohli'que' angle With the axis of the gear". f A suitable level 66 and operating rocl's 63 and 67 arepiovidedlfof bringing'the intermediate gears or discs 44 andv brake shees 42 into engagement. It Will'be noticed that tlie'bi'aliei shoes ism supported on-the ends of the shatts earifyingthe interr'ne diate gears- 44 but of course other arrangements'of the restraining'shoes may he used;

Theoperation 6f this fofmof' m y in i 'ena tion' will be readily understbod' from the descriptionflof the operatiomof Figures" 1 2' and 3" the only d-iflerenc'es" being in'the' altered geai" ratio and the" less direot but readily understood," operation of theloekin clutch for the direct drive. It will be no-' ticedthat,- with the constructions-"shown in Figures 1, 2 and 3 in which" the 'oli tch 38' and 58 are revolved in opposite directions by the gearing, the pull on the clutch to transmit a given amount of power Woiild be l 'ess'than isneeded on a clutch transinitting motion directly between the 'difiwng and driven elements as in this-Fi'gnre 4 thus,

maliingit' possible to use'the simple arrangement shown in Figures *1}; 2, and 3' of having the'thrust bearing 23? hold the eluteh parts in di iving contact on thedirect drive with" out *excessiv'e XVGtII or l'o'ss" cli -Owen It shouldbeunderstood-. h0we\fie1',' that this dog operated clutch of '-Fignre 4,;"connecting the driving and driven elements directly; may" be used"'with the gearing of "Figures 1 and 30r2th'at otl' er"forms-of clutch maybe employed such changes int-he design of the lockingieluteh being'obviousto those tilled v in theart and not altering the principle involved in-'niy"invent ibn= and as; hereinaftend'efined iii the claims. It is further ob viousth'at if 'the g'ieatest simplicity is-desired and plirticula'rlyjifthe gear'is'to' be used with low powers,- it is not necessary t'o-"em'plo'y two sets of iii'terinediategea-ns anc l'brake shoes as obviously one set willo perate just as Wellr if" the pressure side ways on the ear, is not more than is r'e quired' for small powers. In this case the intermediate gear and br'ake'shoelnayp 'ss upon the gear ire-m any angle although I;

i Gin-1m is:

the pressure" to be to a certainextentc'ounteraoted hy'the Weight of the ear; -I n thelargei sizes of this transmission gear 11133 the use of duplicate intermediate"gears and brake shoes todrive Qi'i'esti' ain the mountfl'isbelieved preferableas-the pres 1 siirela'nch pun is equalized 'in' all diiectious thereby red'uci'ng tlie ir'ictional loss on the differentparts.

Havin thus les'oi ibe'd" invention what and wear 1. In transmission: gearing the com; hinatibn of a stationary framing; ztlanet aiy gear system,- a rotafy' driving element having connection With an 'elenient tflie'ieof; at rotary diive'nfi element having connection with another element theieoi? and a rotary clement thereof sa longitudinally 'slida'ble member on said rotary mounflmeans sup orted by said stationary fianiing, for s 01 pingthe motion of sa'i'd' slidablememher a so i yrn'o'unt having minneetioii with still another rotary mount connected thereto and means for" positively dsivingssid slidabl'e' nienibei" and rotary mount independently of the gear;

system; the action of either one of said" nieans'upon said slidable member and i 'otary' meme heii'ig dependent 112011 the 1ongitudi-.

nal positionoi" said-slide is member in r'e-= lat-ion thereto. 7 f

2. In errant-unseen eai mgfihecombma tionof a stationary framing, a p1anetar y gear systeni, a rotar driving-el ment ha 111g sensation-with a" gear thereofea IOtaiV driven 'element' having connection 'Wi ii another gear there'ofand a rotary-"meme hav-ii'i f connection with still? another" gear thereof, a: longitudinally" slidable :Ineniber on said rotary niount nieans ysuppoiftedby -V said-"stationary "framin for stopping the rotation of said ,slid'able member and rotary"- mount connected thereto-When saithslidajble member is in one of its positions"upon said stationary framing,-

f'o'r' positively d tionsupon' said mounts tion ofa 'stiitionaiy fr gear system, a; notary driving-"element ha' 1ngcon11ect1on with a gear thereof, a rotary driven element having c nnection: with an other gear thei eof" sndwa -romr niounti n i 1115; said sli'dable" member and 'i otaiy-nio'unt in de endently of the gear systein- Whenl'said' shdsblei-memberds in anothe'rf' of itsposi ha f 11;? connection with still 'anothen ear tliereoh a longitudinally slidable Ineniber" said stationary,ffaniing; for stopping the rotation of sa d shdahle inenibei and. fo

ta l-jimount connected thereto when said slidable member isone of its positions 11pm said mount and nieans, also" supported lo'y saidstationary training, acting to posi;

tively drive sa id siidab le membep-anqg a 1 55 aiming; planets tion of a stationary framing, a planetary.

gear system, a rotary driving element havconnection with a gear thereof, a rotary driven element having connection with another gear thereof and a rotary mount having connection with still another gear thereof, a longitudinally slidable member on said rotary mount, means, supported by said sta- I tionary fram ng, for stoppmg the rotation of said slidable member and rotary mount connected thereto when said slidable memberis in oneof its positions longitudinally upon said mount and means for locking the driving and driven elements to turn as a unit when said slidablemember is brought into another position longitudinally upon said mount.

5. In a transmission gearing the combina tion of a stationary framing, a planetary gear system, a rotary driving element having connection with a gear thereof, a rotary driven element having connection with another gear thereof and a rotary mount having connection with still another gear thereof, a longitudinally slidable member on said rotary mount, means, supported by said stationary framing, for stopping the rotation of said Slidable member and rotary mount connected thereto when said slidable memher is in one of its positions longitudinally upon said mount, means, also supported by said stationary framing, acting to positively drive said slidable member and rotary mount independently of the gear system and at two or more different speeds depending on theposition longitudinally of said slidable member when said positive driving means is put in engagement with the slidable memher and means for looking-the driving'and driven elements to turn as a unit when said slidable member is brought into an- 7 mount.

other position longitudinally upon said 6. In a transmission. gearing the combination of a Stationary framing, a planetary gear system, a rotary driving ele-' supported by said stationary-framing, acting to positively drivesaid slidable member and. rotary mount independently of the gear system and a single controlling member for bringing by its movement either one or the other of said means into action according to the position longitudinally of said slidable member upon said rotary mount.

7. In a transmission gearing the-combination of a stationary framing, a plan etary gear system, a rotary driving element having connection. with agear thereof, a rotary driven element having connection with another gear thereof and .a rotary mount having connection; with still another gear thereof, means for stopping the rotation of said mount or forpositively driving said mountfrom the driving element, comprising Jo-operative parts mounted on said station-V ary framing and a member mounted on said rotary mount and being longitudinally shiftable at will along its axis of rotation, where-, by when said member isshifted to different positions longitudinally on said mount different rates of rotation in relation to said driving element may be given to said mount by said co-operating parts on said stationary framing or it may be held from rotation by said parts, and means whereby, when said shiftable member is so held from rotation by said parts, said parts arediseonnected from said driving element. 7

8. In a transmission gearing the combination of-a stationary'framing, a planetary gear system and having a driving gear surface, a rotary driving element having connection' with said gear system, a rotary driven element also having connection with said gear system and a rotary mount also having connection with said gear system and also having a driving gear surface, and con-c trollable means for operatively connecting said driving element and rotary mount independently of the gear system comprising a plurality of discs rotatively mounted on said stationary framing and having. gear surfaces adapted to engage said gear surfaces on said driving element and rotary mount and means for simultaneously bringing the surfaces of all said discs into operative engagement with said driving element and rotary mount gear surfaces.

In a transmission gearing the combination of a stationary framing, a planetary gear system, a rotary driving element having connection with said gear system and having a driving gear surface, a rotary driven element also having connection with said gear system and a rotary mount also having connection with said gear system and also having a driving gear surface, and controllable means for operatively connecting said driving element and said rotary mount independently of the gear system comprisingtwo discs rotatably mounted on said stationary framing at substantially op posite sides of the axes of rotation of'said driving element and rotary mount and having gear surfaces adapted to engage said gear surfaces on said driving element and rotary mount and means for simultaneously brmging the surfaces of both said d1scs into operative engagement with said driving ele- V ment and rotary mount gear surfaces wherebythe driving pressure and torque upon said driving element and rotary mount shall be substantially equalized. r

10. In a transmission gearing the combination of a stationary framing, a gear system, a rotary mount having connection with said gear system and having a gear surface, a disc rotatably mounted onsaid framing and having a gear surface adopted to engage said gear surface on the mount, controllable means for moving said CllSC to bring its gear surface into co-operation with the gear surface on ,the mount and means also movable withfsaid disc for co-operat-' ing with said mount toprevent its rotation.

11; Ina transmission gearing the combination of a stationary framing, a gear system, a rotary mount having connection with said gear system and having a gear surface, azdiso also having a gearsurface adapted to co-operate with the gearsurface on said mount rotatably mounted on said framing with its axis of rotation at an angle to the axis of rotationof said mount and arranged so that it' can at will be brought toward or away from saidmount, a braking means connected withsaid; disc so as to be movable therewith toward; or away from said mount and means whereby either said disc gear surface can co-operate with said mount gear surface 'to regulate the speed of said mount or said braking means can co-operate with said "mount to stop said mounts rotation, when said parts are brought toward said mount. V

12. In a transmission gearing the combination of a planetary gear, system comprising a series of bevel or miter gears,'a rotary driving element (having connection with one of said gears, a rotary mount having con nection with another'of said gears and having its axis of rotation concentric with the axis of rotation of said driving element, and

a rotary driven element also having its axis of rotation concentricwith the axis of rotation of'the driving element and rotatably supporting still'another of said gears, and a shaft for this last named gear extending across the axis of rotation of said elements =member is moved to the and having means on the opposite side of said axis of rotation of said elements from gear totake the thrust of 1 said last named said gear.

13. In a transmission gearing the combination of a stationary framing, a planetary gear system, a rotary driving'element hav1ng connection wlt-h an element thereof,

a rotary driven element having connection with another element thereof and a rotary mount having connection with still another element thereof, a. longitudinally slidable member onsaid rotary mount, means, supported bysaid stationary framing, for stop-T ping the motion of said slidable member and rotary mount connected thereto when sa d slidable member 1s in one of its positlons longitudinally upon sa d mount, meansfor op'eratively connecting said'driving'element and said slidable member independently of I the gearsystem When said slidable member v is at one side ofsaid restraining means and means forllocking the driving and driven elements to turn as a unit when said slidable said restraining means. 4 s I I 14. In a transmission gearingthe com opposite side of having connection with still, another element thereof, a longitudinally slidablemember on said rotary mount and also having'a driving gear surface, a disc rotatably mounted on said stationary framing and having 'a gear sur J- face adapted t-o engage said gear surfaces on said driving element and sl dable member when said slidable member is shifted into,

one of its longitudinal positions. and .to

, transmit motion between the driving ele 'ient'and. slidable member independently adapted to be brought into forcible engagement with the slidable member when the 5 slidablemember is shifted to another of its longitudinal positions and means, [acting when the said shoe is thus engaged with the slidable member, to hold said disc outv'of engagement with its cooperating gear surfaces on the driving element and the slidable member."

.of' the gear. system, and a movable shoe,"

In witness whereof, I have hereunto set I my hand this 23rd dayof April, 1919.:

. ALDEN E. OSBORNj f V 

